ob_mode           952 main/output.c  			zval retval, ob_data, ob_mode;
ob_mode           955 main/output.c  			ZVAL_LONG(&ob_mode, (zend_long) context->op);
ob_mode           956 main/output.c  			zend_fcall_info_argn(&handler->func.user->fci, 2, &ob_data, &ob_mode);